Improvement in paper boxes



shown in Fig. 1.

\ N "UNITED 'STATES PATENT @Frise JOSEPH r.' BooK-merrain, or onroornn,MASSACHUSETTS.

` Specilicationforniingpart ofLetters atent No. 186,459, dated January23, 1877; `application iled i April 4, 418'7'6.4

j ment on the paper box patented to me Novem- -ber 16, 1875; andconsists in vthe peculiar shape .of the Short-aps at the corners of thebox, so as to facilitate the putting together of the box.

In the accompanying drawing, Figure 1 represents a plan view of a box inknock-down form which embodies my invention. Fig. 2 isa partial Sectionof the same on line as a* of Fig. 1. Fig. 3 is a partial Side elevationof the same, showing the manner of forming or setting up; and Fig. 4 isa side elevation of one of said boxes and its cover as Set up in. formready for use.

I form the bottom of the box and its four sides of one piece ofmaterial, preferably of paper. The general shape of the blank is adesignates the bottom of the box.; b b, the iiaps, which, when turnedup, constitute the short sides of the box; and c c, the long sides. Uponeach end of the long Sides are short corner-flaps d, in which arel shortslits e. The contour ofthe flaps-d is as follows The edge f is on a linewith the outer or top edge of the long .sides c, and the outer endextends on a line at right angles thereto for about one-half the depthof the sides c, when it runs inward to the slit e, leaving the slitfrom`an eighth to a quarter of an `inch deep, then from the bottom or nearthe l bottom of the slit e to the near cornerof the `box-bottom a,stopping just a little outside of `the scoring g, as shown.

The remaining side ofthe ap corresponds to the end of the long `side c,and `is connected thereto, theseoring g forming the division-line.rectangular, Substantially as long as the box Theflaps b b are is wide,and as wide as the box is deep, and have vertical slits h h formed inthem, the depth of which slits must be fully equal to l thedistancefromthe bottom of the slit e to the top edge of the flap d, and the distancefrom the ends ofthe aps b to the slit h must be equal to the distance'between the slit e and scoring g, less the thickness of the stock. Theblankis also scored at the junction of the bottom and the several sides,andso far as the particular form` of box above described isconcerned,.the scorings maybe of any style in common use, and uponeither the outside or inside; but I muchv prefer the particular scoringhereinafter described.

These boxes are designed to be made by dies and machinery, and packedfor storage and transportation in the tlator knock-down form, so as tooccupy but little space until they are about to be used.

To set up the box for use, the end flaps b b are rst bent up at rightangles to the bottom. The short flaps d are then bent at about rightangles to the sides c c, and the said sides turned up with the flaps don the outside of the flaps b, as shown in Fig. 3 5 and the corner n ofap d inserted in the slit h, as indicated by broken lines in Fig. 3,then the sides c c are brought up at right angles with the bottom, andthe flaps interlock at the slits h e, as Shown in Fig. 4, and the box isready for use. The cover is the same as the box, only larger, so as toShut over the same. By cutting out a portion of the stock at the corner,so as to form the flaps d, as shown, the box is much more convenientlyset up for use than it is when made merely slit at the corners, as

'shown in my former patent before referred to 5 and by making thediagonal cut stop a little outside of the scoring at the corner, yasmall portion of the flap closes around the corner at the bottom ot' thebox to make it tight, the same as if no portion of the flap had beenremoved. It should also be noticed that, this box has no ilaps thatareof necessity bent over for forming, or that are tucked through fopenings, and bent back after tuckingyfin which class of boxes thinpaper only can be Y used but my box has the aps slit only upon one oftheir edges, and is so arranged that in forming no substantial `bend ofthe paper or stock is necessary except at the point of the scorings, andthat when the-aps are bent up at said point the stock moves onlyedgewisel in the act of forming, whereby I am enabled to make my boxofthe very stiiest kind of paper known of` which boxes are ever made.

I score my paper box upon the inside and remove a portion of the stock,leaving the scoring g in V-shaped form, as shown in Fig. 2. When bent upinto form the side takes the position indicated by broken lines in saidtlgure, the two 'sides of the V-shaped scoring meeting' each other on amiter, leaving the outside corners whole and smooth, so that they willnot catch upon objects and tear up.

I claim as my invention- In a knock-down box of the class described, thepeculiar. shape of the flaps d-to Wit, having the edge Which,vvhe11'setup, is at the top

